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Alina [70]
2 years ago
12

How many different types of atoms are in the formula Ba(OH)2 • 8H2O?

Chemistry
1 answer:
BabaBlast [244]2 years ago
6 0
The answer should be A.

Why?
“Different type of atoms” which refers to different element present in the compound. Only Barium, Oxygen, and Hydrogen found in that compound, thus there are 3 types of atom founded it hydrated barium hydroxide.

I hope this enlighten. Apologize for any English or Chemistry concepts.
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Calculate the volume of a 0.5M solution containing 20g of NaOH
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Answer:

1L

Explanation:

First, let us calculate the number of mole present in 20g of NaOH. This is illustrated below:

Mass = 20g

Molar Mass of NaOH = 23 + 16 + 1 = 40g/mol

Number of mole =?

Number of mole = Mass /Molar Mass

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From the question given, we obtained the following data:

Molarity = 0.5M

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Volume =?

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6 0
3 years ago
Read 2 more answers
A 200. gram sample of a salt solution contains 0.050 grams of NaCl. What is the concentration of the
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Answer:

2.5 × 10² ppm

Explanation:

Step 1: Given data

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Step 2: Convert 0.050 g to μg

We will use the conversion factor 1 g = 10⁶ μg.

0.050 g × 10⁶ μg/1 g = 5.0 × 10⁴ μg

Step 3: Calculate the concentration of NaCl in ppm

The concentration of NaCl in ppm is equal to the micrograms of NaCl per gram of the sample.

5.0 × 10⁴ μg NaCl/200. g = 2.5 × 10² ppm

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3 years ago
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